Diagnosis of the Coenosia pedella -group (Diptera: Muscidae), with descriptions of three new species from China

Abstract

The Coenosia pedella-group is established and defined by the combination of the following characters: most species have one presutural dorsocentral seta, costa reaching the tip of media vein, abdomen with distinct spots, hind tibia with dorsal setae, lower calypter at least subequal in length to upper calypter, basis of cerci and surstyli of male short, length of cerci at most four times as long as its width, most of cerci enlarged in distal 1/3 and surstyli subtriangular with width of basal part longer than 1/3 of length. Three new species are described: C. disclambosa Xue & Wang sp. n., C. maoershanensis Xue & Wang sp. n. and C. sublacteipennis Xue & Wang sp. n. Akey to the males of Palaearctic Region species of the Coenosia pedella-group is given.